“The causes of fibromyalgia are not known. But certain things can increase someone’s risk of developing it.

Risk factors or triggers

Risk factors or triggers may include:

• Stressful or traumatic events, accidents, or injuries.
• Repeat injuries, such as repeated joint stress from sports or physical jobs.
• Illness, including viral infections.

Some people may be more likely to develop fibromyalgia

These include:

• People aged 30 to 50.
• Women.
• People with lupus, rheumatoid arthritis, or osteoarthritis.
• People with a family history of fibromyalgia.”

Center for Disease Control – CDC (facts about fibromyalgia – Search)